Improved bed-bottom



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CHARLES E. SIMMONS AND IEI OMER COOK, OF WAUKEGAN, ILLINOIS. LettersPatent No. 71,654, dated December 3, 1867.

IMPROVED BED-BOTTOM.

TO ALL WHOM IT MAY CON GERN:-

Be it known that we, CHARLES E. SIMMONS and HOMER 000K, both ofWaukegan, in the county of Lake, and State of Illinois, have inventednew and useful Improvements in Bed-Bottoms; and we do hereby declarethat the following is a full and exact description thereof, referencebeing had to the accompanying drawings, making part of thisspecification, in which- Figure 1 represents longitudinal sideelevations-of the bed-bottom,

Figure 2 cross side elevation of the same, and v Figure 3 plan of theplate 0 and hinges of braces.

The'nature of our invention consists inplacing two-or more pairs ofbracesbetween the upper frame, provided with canvas, and supported byordinary spiral or coil springs, and the lower frame on which saidsprings rest, said braces being hinged to the upper frame at the top,and secured to the round plates that are attached to the lower frame,and partially revolve on a pivot at the bottom, in such a manner that,when pressure is produced on the canvused frame, said braces. yield,owing to the-partial pivotingof said plates, keeping the said upperframe in proper place, and preventing its lateral motion.

To enable others skilled in the art to make and use our invention, wewill proceed to describe its construction and operation,

A is the lower frame and B the upper fratne. C C are plates pinned tothe frame A, and revolving around their centres on a pivot. D D and DD'are the cross-braces, andFFare the longitudinal braces, having theirtop hinged to the upper frame and their foot hinged to the plates ff,secured to the plates 0 C, at the same distance from their pivots. E Eare coiled springs.

The operation consists in this, that, when the upper frame is presseddown, the braces partially turn the plates C C, thus yielding under thepressure, keeping at the same time the upper frame in proper position,and preventing its lateral motion under the said pressure.

What we claimnas our invention, and desire to secure by Letters Patent,is p The combination of braces D D D D andF F, hinged to'- the upperframe B and tothe plates ff, with the pivoting plates C 0, arranged andoperating as described; I

CHAS. E. SIMMONS, HOMER COOK.

With esscs: V

W. H. ELLIS, AUSTIN Cuuvnu.

